Article(id=1251457070344651661, tenantId=1146029695717560320, journalId=1251194703438200922, issueId=1251457062706820082, articleNumber=null, orderNo=null, doi=10.14106/j.cnki.1001-2028.2025.0239, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1748016000000, receivedDateStr=2025-05-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1776300216517, onlineDateStr=2026-04-16, pubDate=1759593600000, pubDateStr=2025-10-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1776300216517, onlineIssueDateStr=2026-04-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1776300216517, creator=13041195026, updateTime=1776300216517, updator=13041195026, issue=Issue{id=1251457062706820082, tenantId=1146029695717560320, journalId=1251194703438200922, year='2025', volume='44', issue='10', pageStart='1119', pageEnd='1244', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1776300214696, creator=13041195026, updateTime=1776300327814, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1251457537212629591, tenantId=1146029695717560320, journalId=1251194703438200922, issueId=1251457062706820082, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1251457537212629592, tenantId=1146029695717560320, journalId=1251194703438200922, issueId=1251457062706820082, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1211, endPage=1219, ext={EN=ArticleExt(id=1251457070613087129, articleId=1251457070344651661, tenantId=1146029695717560320, journalId=1251194703438200922, language=EN, title=Design of a low temperature drift bandgap reference source with a wide temperature range, columnId=1251457065399563262, journalTitle=Electronic Components and Materials, columnName=Research & Development, runingTitle=null, highlight=null, articleAbstract=
A bandgap reference voltage source(BGR)adopting a composite compensation method was designed. Based on the Banba-type bandgap reference topology,an additional BJT branch and compensation resistors were utilized to cancel the high-order effects of the base-emitter voltage(V). A piecewise compensation circuit was also incorporated to achieve curvature compensation over a wide temperature range. Meanwhile,a digital trimming circuit was employed to further reduce the impact of process variations on circuit performance. Designed in the SMIC 180nm BCD process,post-layout simulation results showed that the reference source could stably output a voltage of 800mV with a temperature coefficient of 0.98×10/℃over the temperature range of-40-150℃. When the supply voltage varied from 1V to 3.3V,the output drift was 5.4mV,with a line regulation of less than 0.23%.
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设计了一种采用复合补偿方式的带隙基准电压源(BGR),基于Banba型带隙基准源结构,利用额外的三极管支路和补偿电阻抵消VBE的高阶效应,并加入分段补偿电路,实现在宽温度范围下的曲率补偿。同时利用数字修调电路,进一步减小工艺对电路性能的影响。电路基于SMIC 180nm BCD工艺进行设计,后仿真结果表明,在-40~150 ℃温度范围内,基准源能够稳定输出800mV电压,温度系数为0.98×10-6/℃;在电源电压1~3.3V变化时,输出漂移值为5.4mV,线性调整率低于0.23%。
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2023: 1-5., articleTitle=A sub l ppm/℃ wide-temperature-range bandgap voltage reference with superior-order temperature-curvature compensation, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1251457080780079400, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, xref=null, ext=[AuthorCompanyExt(id=1251457080788468009, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, companyId=1251457080780079400, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Applied Science, Beijing Information Science and Technology University, Beijing 100192, China), AuthorCompanyExt(id=1251457080792662314, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, companyId=1251457080780079400, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=北京信息科技大学 理学院,北京 100192)])], figs=[ArticleFig(id=1251457083674149245, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 1, caption=
Schematic of the Banba bandgap reference, figureFileSmall=/oDfmHn4vcpkhJvxgnZk9Q==, figureFileBig=iL3CCHNQqNzwqAgyYvBInQ==, tableContent=null), ArticleFig(id=1251457083749646720, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图1, caption=
Banba型带隙基准, figureFileSmall=/oDfmHn4vcpkhJvxgnZk9Q==, figureFileBig=iL3CCHNQqNzwqAgyYvBInQ==, tableContent=null), ArticleFig(id=1251457083955167624, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 2, caption=
Temperature characteristic curve of Banba-type bandgap reference, figureFileSmall=LfNmJr6XMbAya3SLl0V5rg==, figureFileBig=o0rH/KNpHzcT4bH8tqSCDQ==, tableContent=null), ArticleFig(id=1251457084047442311, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图2, caption=
Banba型带隙基准温度特性曲线, figureFileSmall=LfNmJr6XMbAya3SLl0V5rg==, figureFileBig=o0rH/KNpHzcT4bH8tqSCDQ==, tableContent=null), ArticleFig(id=1251457084152299915, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 3, caption=
Bandgap reference structure graph of this article, figureFileSmall=GcO5meV8/s61ntYl1+/rZw==, figureFileBig=/UKqF7pWrNqbl9Gsit2rXg==, tableContent=null), ArticleFig(id=1251457084223603086, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图3, caption=
本文带隙基准结构图, figureFileSmall=GcO5meV8/s61ntYl1+/rZw==, figureFileBig=/UKqF7pWrNqbl9Gsit2rXg==, tableContent=null), ArticleFig(id=1251457084303294866, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 4, caption=
The two-stage operational amplifier, figureFileSmall=b4Dbh5R4e+oGjiPO/GUSlQ==, figureFileBig=ne2SMVgXtxtDAdtT6W0AGw==, tableContent=null), ArticleFig(id=1251457084382986645, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图4, caption=
两级运算放大器, figureFileSmall=b4Dbh5R4e+oGjiPO/GUSlQ==, figureFileBig=ne2SMVgXtxtDAdtT6W0AGw==, tableContent=null), ArticleFig(id=1251457084483649944, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 5, caption=
Main circuit with ΔVBE compensation, figureFileSmall=96+gEHwv1I1+5aCDNN4R7g==, figureFileBig=MH8rYBUc4pJ+PDj2k/m4aQ==, tableContent=null), ArticleFig(id=1251457084567536027, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图5, caption=
经过ΔVBE补偿后的主电路结构, figureFileSmall=96+gEHwv1I1+5aCDNN4R7g==, figureFileBig=MH8rYBUc4pJ+PDj2k/m4aQ==, tableContent=null), ArticleFig(id=1251457084672393629, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 6, caption=
Temperature characteristic curve following preliminary compensation, figureFileSmall=BMuaMXlqvjqw/AkKNsGGWw==, figureFileBig=HBHlBxnKS2DRb46YTZHpCQ==, tableContent=null), ArticleFig(id=1251457084768862627, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图6, caption=
初步补偿后的温度特性曲线, figureFileSmall=BMuaMXlqvjqw/AkKNsGGWw==, figureFileBig=HBHlBxnKS2DRb46YTZHpCQ==, tableContent=null), ArticleFig(id=1251457084856943016, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 7, caption=
The design of piecewise compensation.(a)Full temperature range compensation;(b)Low and high temperature range compensation, figureFileSmall=7FxKSE0iIkEpBJqlPTSmHg==, figureFileBig=GyeA/RAdzHimvTLImjm0rA==, tableContent=null), ArticleFig(id=1251457084936634794, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图7, caption=
分段补偿设计。(a)全温度段补偿;(b)低温段和高温段补偿, figureFileSmall=7FxKSE0iIkEpBJqlPTSmHg==, figureFileBig=GyeA/RAdzHimvTLImjm0rA==, tableContent=null), ArticleFig(id=1251457085007937966, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 8, caption=
Piecewise compensation current curve, figureFileSmall=MAWoTC27+orQxFvvBm8jIg==, figureFileBig=r+V1oNzZcJ55Neq+ywXynQ==, tableContent=null), ArticleFig(id=1251457085096018349, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图8, caption=
分段补偿电流曲线, figureFileSmall=MAWoTC27+orQxFvvBm8jIg==, figureFileBig=r+V1oNzZcJ55Neq+ywXynQ==, tableContent=null), ArticleFig(id=1251457086694048175, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 9, caption=
Resistor trimming matrix, figureFileSmall=0BEFQhOQHvwvFXaoLh2d8g==, figureFileBig=D4YYj2STmG5FKkDxrpnOfg==, tableContent=null), ArticleFig(id=1251457086773739954, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图9, caption=
电阻修调矩阵, figureFileSmall=0BEFQhOQHvwvFXaoLh2d8g==, figureFileBig=D4YYj2STmG5FKkDxrpnOfg==, tableContent=null), ArticleFig(id=1251457086845043127, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 10, caption=
Bandgap reference source circuit layout, figureFileSmall=HRepW1+E9O2BPwuoMESR4A==, figureFileBig=RKsDgwz3dXsqKoPtHBIOyQ==, tableContent=null), ArticleFig(id=1251457086933123512, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图10, caption=
带隙基准源电路版图, figureFileSmall=HRepW1+E9O2BPwuoMESR4A==, figureFileBig=RKsDgwz3dXsqKoPtHBIOyQ==, tableContent=null), ArticleFig(id=1251457087042175420, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 11, caption=
Reference voltage as a function of power supply, figureFileSmall=OpMkofan30iJhggbHn4ceQ==, figureFileBig=skJRKd/ci8SmrrUgpvsviA==, tableContent=null), ArticleFig(id=1251457087126061503, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图11, caption=
输出基准电压VREF随电源电压的变化曲线, figureFileSmall=OpMkofan30iJhggbHn4ceQ==, figureFileBig=skJRKd/ci8SmrrUgpvsviA==, tableContent=null), ArticleFig(id=1251457087214141891, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 12, caption=
The curve of static current, figureFileSmall=nir/TTQ0HR+32YZ7uirXrQ==, figureFileBig=LhKt7+N3aaFcJsPIqSzcoQ==, tableContent=null), ArticleFig(id=1251457087268667846, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图12, caption=
静态电流曲线, figureFileSmall=nir/TTQ0HR+32YZ7uirXrQ==, figureFileBig=LhKt7+N3aaFcJsPIqSzcoQ==, tableContent=null), ArticleFig(id=1251457087348359626, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 13, caption=
PSRR curves of the reference source, figureFileSmall=gFr9IIHPPCre7gT8S0WdQg==, figureFileBig=YlmM9uSvziXaUXoL9FTeXQ==, tableContent=null), ArticleFig(id=1251457087415468495, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图13, caption=
基准源的电源抑制比曲线, figureFileSmall=gFr9IIHPPCre7gT8S0WdQg==, figureFileBig=YlmM9uSvziXaUXoL9FTeXQ==, tableContent=null), ArticleFig(id=1251457087511937487, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 14, caption=
Pre-layout simulation temperature characteristics curve, figureFileSmall=M+XanLdD4tvO8wlNCT/25Q==, figureFileBig=CIZZLUK0PkI1fbGVfZfKKA==, tableContent=null), ArticleFig(id=1251457087587434961, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图14, caption=
前仿温度特性曲线, figureFileSmall=M+XanLdD4tvO8wlNCT/25Q==, figureFileBig=CIZZLUK0PkI1fbGVfZfKKA==, tableContent=null), ArticleFig(id=1251457087688098259, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 15, caption=
Comparison of temperature characteristics between Prelayout and Post-layout simulation, figureFileSmall=dW315RQ7K8LZ40clPf4uhw==, figureFileBig=vu2pqJ8GznsZWRIeO9IVYg==, tableContent=null), ArticleFig(id=1251457087751012821, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图15, caption=
前后仿温度特性对比, figureFileSmall=dW315RQ7K8LZ40clPf4uhw==, figureFileBig=vu2pqJ8GznsZWRIeO9IVYg==, tableContent=null), ArticleFig(id=1251457087805538775, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 16, caption=
Influence of VDD on the segmentation point, figureFileSmall=z/XO6jX8r4HX97Onq2gVeg==, figureFileBig=47egqdW3AtQGzW7YRd67aw==, tableContent=null), ArticleFig(id=1251457087881036249, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图16, caption=
电源电压对分段点的影响, figureFileSmall=z/XO6jX8r4HX97Onq2gVeg==, figureFileBig=47egqdW3AtQGzW7YRd67aw==, tableContent=null), ArticleFig(id=1251457087935562203, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 17, caption=
Influence of process on the segmentation point, figureFileSmall=rELt3PZFJDjwFHoJZgDDbw==, figureFileBig=fzYY7op/Qneevyi26jIDYQ==, tableContent=null), ArticleFig(id=1251457088002671068, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图17, caption=
工艺对分段点的影响, figureFileSmall=rELt3PZFJDjwFHoJZgDDbw==, figureFileBig=fzYY7op/Qneevyi26jIDYQ==, tableContent=null), ArticleFig(id=1251457088073974237, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 18, caption=
Segmentation point of the after trimming, figureFileSmall=y6DF/MhOpvcPcf30T8f7Jg==, figureFileBig=Zyqw4p7K60up5ieR+D6UiQ==, tableContent=null), ArticleFig(id=1251457088132694494, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图18, caption=
修调后的分段点, figureFileSmall=y6DF/MhOpvcPcf30T8f7Jg==, figureFileBig=Zyqw4p7K60up5ieR+D6UiQ==, tableContent=null), ArticleFig(id=1251457088216580575, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 19, caption=
Temperature characteristic curves of the reference source under different process corners before trimming, figureFileSmall=fANjFc8MHBbC1tc4fIurCg==, figureFileBig=RH7uMmA4L4VmA0Z6QXvdLw==, tableContent=null), ArticleFig(id=1251457088271106528, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图19, caption=
修调前基准源在不同工艺角下的温度特性曲线, figureFileSmall=fANjFc8MHBbC1tc4fIurCg==, figureFileBig=RH7uMmA4L4VmA0Z6QXvdLw==, tableContent=null), ArticleFig(id=1251457088325632481, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 20, caption=
Monte Carlo simulation results of the temperature coefficient, figureFileSmall=2YWgaGavscNwZ9K66AGX6g==, figureFileBig=Eob3n5Ljy4G4s0VFRlZHYQ==, tableContent=null), ArticleFig(id=1251457088396935650, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图20, caption=
温度系数的蒙特卡洛仿真结果, figureFileSmall=2YWgaGavscNwZ9K66AGX6g==, figureFileBig=Eob3n5Ljy4G4s0VFRlZHYQ==, tableContent=null), ArticleFig(id=1251457088464044515, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 21, caption=
Comparison of the temperature characteristic curves at the worst process corner before and after trimming inMonte Carlo simulation, figureFileSmall=D5shigg9WdVecpW688pbXw==, figureFileBig=c/nwcocR5LIdGdl5MvP4Nw==, tableContent=null), ArticleFig(id=1251457088522764772, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图21, caption=
MC仿真最差工艺点温度特性曲线修调前后对比, figureFileSmall=D5shigg9WdVecpW688pbXw==, figureFileBig=c/nwcocR5LIdGdl5MvP4Nw==, tableContent=null), ArticleFig(id=1251457088581485029, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Fig. 22, caption=
Temperature characteristic curves of the reference source under different process corners after trimming, figureFileSmall=o+hbzoFp0tBjoAqcxFasGA==, figureFileBig=Mo71dDWyEoHGOerXZWCvRQ==, tableContent=null), ArticleFig(id=1251457088640205286, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=图22, caption=
修调后基准源在不同工艺角下的温度特性曲线, figureFileSmall=o+hbzoFp0tBjoAqcxFasGA==, figureFileBig=Mo71dDWyEoHGOerXZWCvRQ==, tableContent=null), ArticleFig(id=1251457088698925543, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Tab. 1, caption=
Comparison of the temperature coefficients before and after trimming at various process corners
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工艺角 | 修调前温度系数(10-6/℃) | 修调后温度系数(10-6/℃) |
|---|
| 前仿 | 前仿 | 后仿 |
|---|
| SS | 12.1 | 1.58 | 1.87 |
| TT | 0.74 | 0.74 | 0.98 |
| FF | 5.92 | 0.84 | 0.99 |
| SF | 2.08 | 0.85 | 1 |
| FS | 2.56 | 0.91 | 1.1 |
), ArticleFig(id=1251457088761840104, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=表1, caption=
各工艺角下修调前后的温度系数对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工艺角 | 修调前温度系数(10-6/℃) | 修调后温度系数(10-6/℃) |
|---|
| 前仿 | 前仿 | 后仿 |
|---|
| SS | 12.1 | 1.58 | 1.87 |
| TT | 0.74 | 0.74 | 0.98 |
| FF | 5.92 | 0.84 | 0.99 |
| SF | 2.08 | 0.85 | 1 |
| FS | 2.56 | 0.91 | 1.1 |
), ArticleFig(id=1251457088820560361, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=EN, label=Tab. 2, caption=
Simulated results of bandgap reference source of this paper and compared literatures
, figureFileSmall=null, figureFileBig=null, tableContent=
| 文献 | [1] | [5] | [6] | [14] | 本文 |
|---|
| 年份 | 2024 | 2024 | 2019 | 2020 | 2025 |
| 工艺(nm) | 22 | 180 | 180 | 130 | 180 |
| 输入电压(V) | 1.8 | 1.5~2.5 | 1.8 | 3 | 1~3.3 |
| 输出电压(V) | 0.8 | 0.9 | 0.3 | 1.21 | 0.8 |
| 温度范围(℃) | -40~125 | -40~150 | -45~170 | -40~125 | -40~150 |
| 温度系数(10-6/℃) | 34.6 | 0.638 | 4.6 | 0.64 | 0.98 |
| 线性调整率(%) | 0.29 | 0.023 | - | - | 0.23 |
), ArticleFig(id=1251457088875086314, tenantId=1146029695717560320, journalId=1251194703438200922, articleId=1251457070344651661, language=CN, label=表2, caption=
本文与其他文献带隙基准源仿真结果比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 文献 | [1] | [5] | [6] | [14] | 本文 |
|---|
| 年份 | 2024 | 2024 | 2019 | 2020 | 2025 |
| 工艺(nm) | 22 | 180 | 180 | 130 | 180 |
| 输入电压(V) | 1.8 | 1.5~2.5 | 1.8 | 3 | 1~3.3 |
| 输出电压(V) | 0.8 | 0.9 | 0.3 | 1.21 | 0.8 |
| 温度范围(℃) | -40~125 | -40~150 | -45~170 | -40~125 | -40~150 |
| 温度系数(10-6/℃) | 34.6 | 0.638 | 4.6 | 0.64 | 0.98 |
| 线性调整率(%) | 0.29 | 0.023 | - | - | 0.23 |
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